Camshaft surface detection equipment and method

Abstract

The invention relates to camshaft surface detection equipment and method, and the equipment comprises a bottom plate, the top of the bottom plate is provided with a fixed clamping assembly for clamping a camshaft, the top of the bottom plate is provided with two second dovetail grooves, and the two second dovetail grooves are internally provided with sliding clamping assemblies for clamping the camshaft. A plurality of telescopic rods are fixedly connected to the top of the bottom plate; the invention further provides a camshaft surface detection method which comprises the following steps: S1, mounting: sliding one of the mounting racks along the second dovetail groove, and sliding the mounting rack to a proper position. According to the camshaft surface crack detection device, surface cracks of a camshaft can be detected through the surface detection assembly without depending on artificial vision, the camshaft can be rapidly clamped through cooperative use of the fixed clamping assembly and the sliding clamping assembly, and subsequent detection of the camshaft is greatly facilitated.

Description

Technical Field

[0001] The present invention relates to the field of camshafts, and in particular to a camshaft surface detection device and method. Background Art

[0002] With the rapid development of the textile equipment industry, camshafts, as key transmission components, have a direct impact on the efficiency and reliability of the entire textile equipment due to their performance and lifespan. Therefore, ensuring the quality of camshafts requires camshaft quality testing.

[0003] Existing camshaft inspections rely primarily on manual vision. A camshaft is placed in front of an operator, who visually inspects the surface for cracks or other defects. While this method may have been adequate under simple inspection conditions, its limitations are becoming increasingly apparent as technology and market demands for precision and efficiency increase. This is primarily because each inspection requires manual inspection, which not only significantly increases labor costs, but also, due to operator fatigue or distraction, subjective observation can easily introduce human error, affecting the accuracy and consistency of inspection results. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a camshaft surface detection device and method to solve one or more problems in the prior art.

[0005] To achieve the above object, the technical solution of the present invention is as follows: The top of the base plate is provided with a fixed clamping assembly for clamping the camshaft, the top of the base plate is provided with two second dovetail grooves, the two second dovetail grooves are provided with a sliding clamping assembly for clamping the camshaft, the top of the base plate is fixedly connected to a plurality of telescopic rods, the other ends of the two adjacent telescopic rods are fixedly connected to a fixed frame, two guide rods are fixedly connected between the two fixed frames, and a surface detection assembly is provided on the circumferential outer side of the two guide rods, one side of one of the fixed frames is provided with a camshaft that drives the fixed clamping assembly and the sliding clamping assembly to rotate, and a driving assembly for driving the surface detection assembly to move along the direction of the guide rod is also provided near the side of the fixed frame, the base plate is fixedly connected to a first double-axis cylinder, the first double-axis cylinder is used to drive the other fixed frame to move up and down, and the top of the base plate is provided with a hardness detection assembly for detecting the hardness of the camshaft.

[0006] As a further solution of the present invention, the fixed clamping assembly and the sliding clamping assembly both include mounting frames, one of the mounting frames is fixedly connected to the top of the base plate, and the other mounting frame is slidably connected in the second dovetail groove. The mounting frames are connected to two second rotating wheels through bearings, and adjacent second rotating wheels are symmetrically arranged with the central axis of the mounting frame as the center. The two clamping frames are slidably connected to the mounting frame, and the inner walls on both sides of the two clamping frames are rotatably connected to the first rotating wheel through bearings. A rotatable bidirectional threaded rod is also provided on the mounting frame, and the bidirectional threaded rod is threadedly connected to the clamping frame.

[0007] As a further solution of the present invention, the surface detection component includes a slider slidably connected to the outside of the two guide rods, both sides of the slider are fixedly connected to the slide cylinder, the inside of the slide cylinder is slidably connected to the slide rod, one end of the two slide rods is detachably connected to the infrared flaw detection probe by bolts, and the circumferential outer walls of the two slide cylinders are also detachably connected to the infrared flaw detection probe by bolts. The circumferential outer walls of the two slide cylinders are provided with a threaded groove passing through the slide cylinder, and the second screw rod is threadedly connected in the threaded groove, and a part of the second screw rod extends into the slide cylinder and is against the slide rod.

[0008] As a further solution of the present invention, the drive assembly includes a self-locking motor fixedly connected to one side of the fixed frame, the output shaft of the self-locking motor passes through the fixed frame and is keyed to the drive wheel, and the two fixed frames are rotatably connected to a third screw rod through a bearing, and the third screw rod is used to be threadedly connected to the slider; the third screw rod is connected to the output shaft of the self-locking motor through a transmission assembly.

[0009] As a further solution of the present invention, the transmission assembly includes a first gear, the first gear is connected to the outer side of the third screw rod through a key, the self-locking motor output shaft is connected to the second gear through a key, and the second gear is meshed with the first gear.

[0010] As a further solution of the present invention, the hardness detection assembly includes a slide arranged on the top of the base plate, the top of the slide is fixedly connected to the second double-axis cylinder, and the two piston ends of the second double-axis cylinder are fixed with a Shore hardness tester.

[0011] As a further solution of the present invention, two first dovetail grooves for sliding of the slide are provided on the top of the base plate, and the internal thread of the slide is connected to a first screw rod, which is used to contact the base plate.

[0012] The present invention also provides a camshaft surface detection method, comprising the following steps: S1: Installation: Slide one of the mounting brackets along the second dovetail groove to a suitable position, place the camshaft on top of the second rotating wheel, and rotate the two bidirectional threaded rods in sequence. The two bidirectional threaded rods respectively drive the two clamping brackets to move inward along the top of the mounting bracket. The clamping brackets drive the first rotating wheel to contact the camshaft and form a squeeze state, thereby clamping the camshaft through the cooperation of the multiple first rotating wheels and the second rotating wheels; S2: Crack detection, start the first double-axis cylinder, which drives one of the fixed frames to move downward. Through the action of the guide rod, the two fixed frames are driven to move downward simultaneously along the direction of the telescopic rod, so that the driving wheel contacts the camshaft; The second screw rod is rotated to disengage the second screw rod from the sliding rod, so that the sliding rod is released from fixation, and the sliding rod is slid. The sliding rod drives the infrared flaw detection probe at one end of the sliding rod to move to a suitable position, and the second screw rod is rotated to make the second screw rod contact with the sliding rod and form an extrusion state, and the self-locking motor is started. The output shaft of the self-locking motor drives the driving wheel to rotate, and the camshaft on the top of the second rotating wheel driven by the driving wheel rotates. At the same time, the output shaft of the motor drives the first gear to rotate, and the first gear drives the second gear to rotate, and the second gear drives the third screw rod to rotate. The slider brought by the third screw rod moves along the direction of the guide rod, and the slider drives multiple infrared flaw detection probes to move. Through the movement of multiple infrared flaw detection probes and the rotation of the camshaft, the surface of the camshaft is fully detected; S3: Hardness test: Slide the slide along the first dovetail groove to the appropriate position, then rotate the first screw rod to make it contact with the base plate and form an extrusion state, start the second double-axis cylinder, and the second double-axis cylinder drives the Shore hardness tester to move, so that the Shore hardness tester contacts the surface of the camshaft, thereby testing the hardness of the camshaft surface with the Shore hardness tester; S4: Cleaning. After the camshaft surface inspection is completed, the camshaft is disassembled and placed in a cleaning tank to clean the dust and oil on its surface.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are as follows (1) The surface cracks of the camshaft are detected by the surface detection component without relying on human vision, which greatly reduces labor costs and reduces detection errors caused by human factors, effectively improving detection efficiency. In addition, through the coordinated use of multiple infrared flaw detection probes, the entire surface of the camshaft is covered to ensure that there are no blind spots in the detection.

[0014] (2) By using the fixed clamping assembly in conjunction with the sliding clamping assembly, the camshaft can be quickly clamped, which greatly facilitates the subsequent inspection of the camshaft. The sliding clamping assembly can also clamp camshafts of different lengths, thereby greatly increasing the scope of use of the equipment.

[0015] (3) By sliding the slide along the first dovetail groove, different testing positions on the camshaft can be accurately aligned, ensuring that the hardness tester can directly and accurately contact the part to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a camshaft surface detection device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the enlarged structure of part A of a camshaft surface detection device according to an embodiment of the present invention is shown; Figure 3 A partially enlarged structural diagram of a camshaft surface detection device according to an embodiment of the present invention is shown; Figure 4 A schematic structural diagram of a surface detection component of a camshaft surface detection device according to an embodiment of the present invention is shown; Figure 5 A partial cross-sectional structural diagram of a camshaft surface detection device according to an embodiment of the present invention is shown; Figure 6 The figure shows a process flow diagram of a camshaft surface detection method proposed by the present invention.

[0017] Markings in the accompanying drawings: 1. First double-axis cylinder; 2. Guide rod; 3. Surface detection assembly; 4. Fixed frame; 5. Drive assembly; 6. Telescopic rod; 7. Fixed clamping assembly; 8. Base plate; 9. Slide; 10. Hardness detection assembly; 11. Second double-axis cylinder; 12. Shore hardness tester; 13. First dovetail groove; 14. Sliding clamping assembly; 15. Second dovetail groove; 16. First screw rod; 17. First rotating wheel; 18. Clamping frame; 20. Bidirectional threaded rod; 22. Mounting frame; 23. Second rotating wheel; 24. Slider; 25. Slide; 26. Infrared flaw detection probe; 27. Second screw rod; 28. Slide; 29. Third screw rod; 30. First gear; 31. Second gear; 32. Drive wheel. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clear, the camshaft surface detection device and method proposed by the present invention are further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the drawings are in a very simplified form and are not in precise proportions. They are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the implementation conditions of the present invention and therefore have no technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0019] Reference Figures 1-6A camshaft surface detection device includes a base plate 8, a fixed clamping component 7 for clamping the camshaft is provided on the top of the base plate 8, two second dovetail grooves 15 are provided on the top of the base plate 8, and a sliding clamping component 14 for clamping the camshaft is provided in the two second dovetail grooves 15. A plurality of telescopic rods 6 are fixed to the top of the base plate 8 by bolts, and the other ends of two adjacent telescopic rods 6 are fixed to a fixing frame 4 by bolts. Two guide rods 2 are fixed between the adjacent fixing frames 4 at the left and right ends of the base plate 8 by bolts. A surface detection component 3 is provided on the outer side of the circumference of the two guide rods 2. The surface detection component 3 includes a circumferential surface of the two guide rods 2. The outer slider 24, both sides of the slider 24 are fixed with a slide 25 by bolts, the inner wall of the slide 25 is slidably connected to the slide rod 28, one end of the two slide rods 28 is detachably connected to the infrared flaw detection probe 26 by bolts, the circumferential outer walls of the two slides 25 are also detachably connected to the infrared flaw detection probe 26 by bolts, the model of the infrared flaw detection probe 26 is AG-930 full digital probe, the circumferential outer walls of the two slides 25 are provided with a threaded groove that penetrates the slide 25, and the threaded groove is threaded with a second screw rod 27 that contacts the slide rod 28. Rotate the second screw rod 27 to disengage the second screw rod 27 from the slide rod 28, thereby disengaging the slide rod 28. Then slide the slide bar 28, which drives the infrared flaw detection probe 26 on the slide bar 28 to move to the appropriate position. Through the coordinated use of multiple infrared flaw detection probes 26, the surface of the camshaft is fully inspected to avoid the appearance of blind spots. One side of one of the fixing frames 4 is provided with a driving assembly 5 that drives the camshaft clamped by the fixed clamping assembly 7 and the sliding clamping assembly 14 to rotate, and drives the surface detection assembly 3 to move along the direction of the guide rod 2. The bottom plate 8 is fixed with a first dual-axis cylinder 1 that drives the other fixing frame 4 to move up and down by bolts. The top of the bottom plate 8 is provided with a hardness detection assembly 10 for detecting the hardness of the camshaft. The camshaft is clamped by the cooperation of the component 7 and the sliding clamping component 14, and then the first double-axis cylinder 1 is started. The first double-axis cylinder 1 drives one of the fixed frames 4 to move downward, and under the action of the guide rod 2, the two fixed frames 4 are driven to move downward at the same time along the direction of the telescopic rod 6, so that the driving component 5 contacts the camshaft, and the driving component 5 is started. While the driving component 5 drives the camshaft to rotate, it also drives the surface detection component 3 to move along the direction of the guide rod 2. Through the movement of the surface detection component 3 and the rotation of the camshaft, the surface of the camshaft is fully inspected, and no manual visual inspection is required, which greatly improves the inspection efficiency.

[0020] In the present invention, the fixed clamping assembly 7 and the sliding clamping assembly 14 both include a mounting frame 22, one of the mounting frames 22 is fixed to the top of the base plate 8 by bolts, and the other mounting frame 22 is slidably connected to the second dovetail groove 15, and two symmetrically arranged second runners 23 are connected between the inner walls on both sides of the two mounting frames 22 through bearings, and the top of the mounting frame 22 is slidably connected to two symmetrically arranged clamping frames 18, and the two clamping frames 18 are rotatably connected to the first runner 17 between the inner walls on both sides of the top through bearings, and the inner wall of the mounting frame 22 is rotatably connected to a bidirectional threaded rod 20 threadedly connected to the two clamping frames 18. The camshaft is placed on the top of the second runner 23, and then the two bidirectional threaded rods 20 are rotated in turn. The two bidirectional threaded rods 20 respectively drive the two clamping frames 18 to move inward, so that the first runner 17 on the clamping frame 18 contacts the side of the top of the camshaft, thereby achieving clamping of the camshaft, which greatly facilitates the subsequent surface inspection of the camshaft.

[0021] The third screw rod 29 is connected to the output shaft of the self-locking motor through the bearing, and the third screw rod 29 is connected to the output shaft of the self-locking motor through the transmission assembly. The transmission assembly includes a first gear 30 which is connected to the outer side of the circumference of one end of the third screw rod 29 by a key. The output shaft of the self-locking motor is connected to the second gear 31 by a key. The second gear 31 is meshed with the first gear 30. The output shaft of the self-locking motor drives the second gear 31 to rotate, and the second gear 31 drives the first gear 30 to rotate. The first gear 30 drives the third screw rod 29 to rotate, and the self-locking motor is started. The output shaft of the self-locking motor rotates with the driving wheel 32, and the camshaft at the top of the second rotating wheel 23 driven by the driving wheel 32 rotates. At the same time, through the transmission assembly, the third screw rod 29 rotates, and the slider 24 driven by the third screw rod 29 moves along the direction of the guide rod 2.

[0022] It should be noted that the hardness detection assembly 10 includes a slide 9 arranged on the top of the base plate 8. The top of the slide 9 is fixed with a second double-axis cylinder 11 by bolts. The two piston ends of the second double-axis cylinder 11 are fixed with a Shore hardness tester 12 by bolts. The model of the Shore hardness tester 12 is XL-D. The top of the base plate 8 is provided with two first dovetail grooves 13 for sliding the slide 9. The internal thread of the slide 9 is connected with a first screw rod 16 in contact with the base plate 8. By sliding the slide 9 along the first dovetail groove 13, the position of the Shore hardness tester 12 is adjusted, which facilitates the Shore hardness tester 12 to detect the hardness of other positions of the camshaft. The second double-axis cylinder 11 is started, and the second double-axis cylinder 11 drives the Shore hardness tester 12 to move, so that the Shore hardness tester 12 contacts the surface of the camshaft, thereby detecting the hardness of the camshaft surface by the Shore hardness tester 12.

[0023] The present invention also provides a camshaft surface detection method, comprising the following steps: S1: Installation, slide one of the mounting brackets 22 along the second dovetail groove 15, slide the mounting bracket 22 to the appropriate position, then place the camshaft on the top of the second rotating wheel 23, and then rotate the two bidirectional threaded rods 20 in sequence. The two bidirectional threaded rods 20 respectively drive the two clamping brackets 18 to move inward along the top of the mounting bracket 22, and the clamping bracket 18 drives the first rotating wheel 17 to contact the camshaft and form an extrusion state, so that the camshaft is clamped by the cooperation of multiple first rotating wheels 17 and the second rotating wheel 23.

[0024] S2: Crack detection, start the first double-axis cylinder 1, the first double-axis cylinder 1 drives one of the fixed frames 4 to move downward, and under the action of the guide rod 2, the two fixed frames 4 are driven to move downward simultaneously along the direction of the telescopic rod 6, so that the driving wheel 32 contacts the camshaft, and then the second screw rod 27 is rotated to disengage the second screw rod 27 from the slide rod 28, so that the slide rod 28 is unfixed, and then the slide rod 28 is slid, and the slide rod 28 drives the infrared flaw detection probe 26 at one end of the slide rod 28 to move to the appropriate position, and then the second screw rod 27 is rotated to disengage the second screw rod 27 from the slide rod 2 8 contacts and forms an extrusion state, and then the self-locking motor is started, the output shaft of the self-locking motor drives the driving wheel 32 to rotate, and the driving wheel 32 drives the camshaft on the top of the second rotating wheel 23 to rotate. At the same time, the output shaft of the self-locking motor drives the second gear 31 to rotate, and the second gear 31 drives the first gear 30 to rotate, and the first gear 30 drives the third screw rod 29 to rotate. The slider 24 carried by the third screw rod 29 moves along the direction of the guide rod 2, and the slider 24 carries multiple infrared flaw detection probes 26 to move. Through the movement of multiple infrared flaw detection probes 26 and the rotation of the camshaft, the surface of the camshaft is fully detected.

[0025] S3: Hardness test, slide the slide 9 along the first dovetail groove 13 to move the slide 9 to the appropriate position, then rotate the first screw rod 16 to make the first screw rod 16 contact with the base plate 8 and form an extrusion state, then start the second double-axis cylinder 11, the second double-axis cylinder 11 drives the Shore hardness tester 12 to move, so that the Shore hardness tester 12 contacts the surface of the camshaft, thereby testing the hardness of the camshaft surface through the Shore hardness tester 12.

[0026] S4: Cleaning. After the camshaft surface inspection is completed, the camshaft is disassembled and placed in a cleaning tank to clean the dust and oil on its surface.

[0027] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A camshaft surface detection device, comprising a base plate (8), characterized in that: The top of the base plate (8) is provided with a fixed clamping assembly (7) for clamping the camshaft, the top of the base plate (8) is provided with two second dovetail grooves (15), and the two second dovetail grooves (15) are provided with a sliding clamping assembly (14) for clamping the camshaft, the top of the base plate (8) is fixedly connected to a plurality of telescopic rods (6), the other ends of two adjacent telescopic rods (6) are fixedly connected to a fixing frame (4), two guide rods (2) are fixedly connected between the two fixing frames (4), and the outer circumferences of the two guide rods (2) are provided with surface inspection A surface detection component (3) is provided on one side of one of the fixing frames (4) for driving a camshaft clamped by a fixing clamping component (7) and a sliding clamping component (14) to rotate. A driving component (5) for driving the surface detection component (3) to move along the guide rod (2) is also provided on the side close to the fixing frame (4). The base plate (8) is fixedly connected to a first double-axis cylinder (1), and the first double-axis cylinder (1) is used to drive the other fixing frame (4) to move up and down. A hardness detection component (10) for detecting the hardness of the camshaft is provided on the top of the base plate (8).

2. The camshaft surface detection device according to claim 1, characterized in that: The fixed clamping assembly (7) and the sliding clamping assembly (14) both include mounting frames (22), one of the mounting frames (22) being fixedly connected to the top of the base plate (8), and the other mounting frame (22) being slidably connected in the second dovetail groove (15), the mounting frames (22) being connected to two second rotating wheels (23) via bearings, and adjacent second rotating wheels (23) being symmetrically arranged with the central axis of the mounting frame (22) as the center, the mounting frame (22) being slidably connected to two clamping frames (18), and the inner walls on both sides of the two clamping frames (18) being rotatably connected to the first rotating wheel (17) via bearings, and the mounting frame (22) also being provided with a rotatable bidirectional threaded rod (20), and the bidirectional threaded rod (20) being threadedly connected to the clamping frame (18).

3. The camshaft surface detection device according to claim 1, characterized in that: The surface detection assembly (3) includes a slider (24) slidably connected to the outside of the two guide rods (2), both sides of the slider (24) are fixedly connected to the slide cylinder (25), the interior of the slide cylinder (25) is slidably connected to the slide rod (28), one end of the two slide rods (28) is detachably connected to the infrared flaw detection probe (26) by bolts, and the circumferential outer walls of the two slide cylinders (25) are also detachably connected to the infrared flaw detection probe (26) by bolts, and the circumferential outer walls of the two slide cylinders (25) are provided with a threaded groove penetrating the slide cylinder (25), and the threaded inner groove is connected to the second screw rod (27), and a portion of the second screw rod (27) extends into the slide cylinder (25) and abuts against the slide rod (28).

4. The camshaft surface detection device according to claim 1, characterized in that: The driving assembly (5) includes a self-locking motor fixedly connected to one side of the fixing frame (4), the output shaft of the self-locking motor passes through the fixing frame (4) and is keyed to the driving wheel (32), and a third screw rod (29) is rotatably connected between the two fixing frames (4) through a bearing, and the third screw rod (29) is used for threaded connection with the slider (24); the third screw rod (29) is connected to the output shaft of the self-locking motor through a transmission assembly.

5. The camshaft surface detection device according to claim 1, characterized in that: The transmission assembly comprises a first gear (30), the first gear (30) being connected to the outer side of the third screw rod via a key, the self-locking motor output shaft being connected to a second gear (31) via a key, and the second gear (31) being meshed with the first gear (30).

6. The camshaft surface detection device according to claim 1, characterized in that: The hardness detection assembly (10) includes a slide (9) arranged on the top of the base plate (8), the top of the slide (9) is fixedly connected to a second double-axis cylinder (11), and the two piston ends of the second double-axis cylinder (11) are fixed with a Shore hardness tester (12).

7. The camshaft surface detection device according to claim 6, characterized in that: Two first dovetail grooves (13) for the sliding of the slide (9) are provided on the top of the bottom plate (8), and the internal thread of the slide (9) is connected to the first screw rod (16), and the first screw rod (16) is used to contact the bottom plate (8).

8. A camshaft surface detection method, characterized in that: The following steps are involved: S1: Installation, slide one of the mounting frames (22) along the second dovetail groove (15), slide the mounting frame (22) to a suitable position, place the camshaft on the top of the second rotating wheel (23), rotate the two bidirectional threaded rods (20) in sequence, the two bidirectional threaded rods (20) respectively drive the two clamping frames (18) to move inward along the top of the mounting frame (22), the clamping frames (18) drive the first rotating wheel (17) to contact the camshaft and form an extrusion state, thereby clamping the camshaft through the cooperation of the multiple first rotating wheels (17) and the second rotating wheel (23); S2: crack detection, start the first double-axis cylinder (1), the first double-axis cylinder (1) drives one of the fixed frames (4) to move downward, and through the action of the guide rod (2), drives the two fixed frames (4) to move downward simultaneously along the direction of the telescopic rod (6), so that the driving wheel (32) contacts the cam shaft; The second screw rod (27) is rotated to disengage the second screw rod (27) from the slide rod (28), so that the slide rod (28) is disengaged from the fixed position, the slide rod (28) is slid, and the slide rod (28) drives the infrared flaw detection probe (26) at one end of the slide rod (28) to move to a suitable position, and the second screw rod (27) is rotated to contact the second screw rod (27) with the slide rod (28) and form an extrusion state, and start the self-locking motor, and the output shaft of the self-locking motor rotates with the driving wheel (32), and the driving wheel (32) drives the second rotating wheel ( 23) The camshaft at the top rotates, and at the same time, the motor output shaft drives the first gear (30) to rotate, the first gear (30) drives the second gear (31) to rotate, the second gear (31) drives the third screw rod (29) to rotate, the slider (24) with the third screw rod (29) moves along the direction of the guide rod (2), and the slider (24) with multiple infrared flaw detection probes (26) moves, and through the movement of the multiple infrared flaw detection probes (26) and the rotation of the camshaft, the surface of the camshaft is fully inspected; S3: Hardness test, slide the slide (9) along the first dovetail groove (13) to move the slide (9) to a suitable position, then rotate the first screw rod (16) to make the first screw rod (16) contact with the bottom plate (8) and form an extrusion state, start the second double-axis cylinder (11), and the second double-axis cylinder (11) drives the Shore hardness tester (12) to move, so that the Shore hardness tester (12) contacts with the surface of the camshaft, thereby testing the hardness of the camshaft surface through the Shore hardness tester (12); S4: Cleaning. After the camshaft surface inspection is completed, the camshaft is disassembled and placed in a cleaning tank to clean the dust and oil on its surface.

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